Haydon HAY-DL45 45cm Armoured Stainless Steel Door Loop with Cast Aluminium End Caps
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Haydon HAY-DL45 45cm Armoured Stainless Steel Door Loop with Cast Aluminium End Caps
The Haydon HAY-DL45 is a heavy-duty 45cm armoured door loop designed to provide reliable mechanical protection for cables passing between fixed door frames and moving doors. Manufactured for professional security, access control and fire safety installations, it safeguards vulnerable wiring against wear, accidental damage and vandalism whilst maintaining a neat and secure cable route.
Constructed from armoured stainless steel, the flexible conduit provides excellent resistance to impact, abrasion and tampering, making it suitable for high-traffic commercial and public environments. The durable construction ensures long-term performance in demanding applications where exposed cables require additional protection.
The door loop features cast aluminium end caps for added strength and durability, ensuring secure fixing to both the door and frame. Its surface-mounted design with recessed fixing screws provides a clean, professional installation while helping to minimise the risk of tampering. All necessary fixing screws are supplied for straightforward installation.
KEY FEATURES
- 45cm armoured stainless steel door loop
- Protects cables between door and frame
- Heavy-duty stainless steel flexible conduit
- Cast aluminium end caps
- 10mm internal diameter
- Surface-mounted installation
- Recessed fixing screws for a neat finish
- Fixing screws included
- Vandal-resistant construction
- Suitable for access control, CCTV and fire alarm systems
- Corrosion-resistant stainless steel design
- Ideal for commercial and industrial installations
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